Cutting-blowpipe



G. H. ZOU'CKf cumm; sLowPlPE. APPLICATIGH FILED OCT. 8. 1619.

Patented Mar. 2, 1920.

citizen of the United ter understod b UNITED 'STATES PATENT oEEIoE.

GEORGE ZOUCK, 0F ORANGE. NEW JERSEY, ASSIGNOR T0 AIR REDUCTION COMPANY, INC., A CQRIORTION 0F NEW YORK.

C UTTING-BL O'WPIPE.

Application filed October 8.

To all whom t may formara Be it known that I, GEonen H. Zonen, a

Oran e, in the county of Essex, State ot' ew ersey, have invented certain new and useful Improvements in (luttinglllowpigws: and I do hereby declare the following ro he a full, clear, and exact defu'ription of the invention, such as will enable others skilled in the art to which. it appez'tains to nialnand use the same.

This invention relates to hlowpipes burin ing mixtures of con'ibustiblo and oxidizing gases and arranged to direct a jot, oil oxidiz-r ing as upon a selected Vnirtion olf the work, Whic is maintained at t e ignition temperature by the burning mixture. Such blow pi es are widely used in cutting metals.

n blowpipes of the character described,

'it is desirable and usual to provide a controlling valve for the cutting jet of oxidizlng gas and the primary object of the prcsent Invention is the provision of a Simple, inexpensive, easily operable and eflective actuating means for the cutting jet control- ]in valve.

further object of the invention the provision of an actuating means which holds` the valve open during the cutting operation Without effort or manipulation by the 0perator, beyond the simple movement of the actuating means to open the valve. and of an adjustment to take up wear of the parte so that the blowpipe may be maintained in prime Working condition for a. substantially indefinite period.

These and other objects and. advantages of the invention will be apparent as it is betV reference to the following s ecification, w en read in connection with tiie accompanying drawing, illustrating the preferred embodiment of the invention, in which,

Figure 1 isla longitudinal section through a blowpipe constructed in accordance with my invention A Fig. 2 is a section on the line QHQ of Fi 1;

1g. 3 is a section on the line 3-3 of Fig.

Specification of Letters Patent.

States, residing at Patented Mar. 2, 1920.

1519, Serial No. 329,225,

Figi 4 is a section 'on the line 4-4 of Fig. 2; anv

Fig. 5 is a. section on the line 5 5 of Fie. 1.

liefen-ing to the drawing. 5 indicates a hlowpipc head adapted to receive an interchangeable tip (i. The head and tip may he o1 an)i suitable or wel] known construction and forni no part of the present'invention, it lining essential merely that the tip proities 'for one or more heating jets supplied with roml'iustible and oxidizing' gases and a cutting jet supplied with an oxidizing gas while the head is oonstrlwted to deliver the gases -to the ti p.

In the present embodimentof my invention, the gases are conveyed to the head through three independent pipes, 7, 8 and 9, the `pipe T carrying the oxidizing gas for the cutting jet and the pipes 8 and 9 carrying respectively, oxidizing andicom'bustible gases for the heating jets. The pipes 7, 8 and 9 terminate in, and are secured to, a butt 10 in which the controlling valves for the gases are mounted.

The butt 10 is preferably a. metal casting hich is bored and countcrbored to provide a valve chamber 11, having a seat 12 against which a conical valve 18 is normally seated by a spring 14 surrounding a stem 15 of the valve and bearing against a removable plug 16 threadedly mounted in the butt 10. The

valve chamber 11 1s connected by a passage permits passage of the oxidizing gas to the pipe when the valve 13 is lifted from the seat.

A stem 20 of the valve 13 is supported in .a suitable opening provided therefor, in the butt 10, and r1s provided with a rounded end 21. A gland 22 prevents escape of the oxias a pressure' Apassage 1%)v extending from the seat 124to the pipe 7 dizing gas about the stern which is, nevertheless, permitted to move freely vwhen actuated as hereinafter explained to lift the valve from its seat.

` mein open `the rearward end of the slide 25,

connected by The rearward portions of the pipes 7, 8 und 9 are surrounded by a sleeve 23 which is preferably knurled to provide n handle whereb the blowpipe may be riisped und firmly eld by the operator. he sleeve 23 is preferably fastened to the butt l() und tapered at its forward end as indicated in the drawing to give n finished ni'nicnruiici.: to the blowpipe. At one side, the sleeve Ql is provided with a longitudinally extending depression 24 and n slide 25 is disposed therein for reciprocal movement, extensions 26 and 27 thereon bein disposed respectively in openings provide therefor in a Iguido block 28 fastened to the sleeve 23 and in the butt 10. A trigger 2 is vpivotnlly mounted ut 30 on the slide 25 nd as an end 31 disposed in an opening 32 in the sleeve 23. Thus y pulling the trigger 29, the slidrl 25 muy bc movedlrearwnrdly with relation to the sleeve or lisindle 23.

A cam block 33 is edjustubly mounted on being preiA ersibly secured by a stud 34, disposed in a slot 35 in the slide and tlii'eudedly en gngod by n nut 33'. A take-up block B is supported between u shoulder :il on the slide 35 und the Cam block 33 by screw 38 wh ich posses through the slide 25 und tlirendedlv engages the taken block. The cam bloc i and take-up block ove coperating sloping surfaces so that by adjusting the nut 35 und screw 38, the com block muy be securely held in adjusted position.

The cem block 33 is 'provided with a cani face 39 against which rests a thrust iirni 40, pivoted at A4l on the butt l0. The opposite side of the arm 4() bears' against the rounded end 21 of the stein 20 and when the slide 25 is moved rearwardly, the thrust erm 40 rides over the cam face et the same time the stem 20 is actuated to cui-ry the vnlvc 13 away from its sent thus permitting oxidizing gas to pessiinto the pipe 7. The movement of the slide 25 is sullicient to carry the cam face beyond the point where the spring 14 will' return tion and consequently the viilve will reuntil the slide is moved slightly in the opposite direction, whereu on the spring wil force Vthe slide forwar ly thus permitting. the valve to sent.

A? passa e`42 connects the valve chamber f l1 to a vave chamber 43 which is iii turn a passage 44 to the pipe 8 conveying oxidizing ges for the heating Jet.. needle valve 45 of well known construction, controlled by a head 4G, is disposed in the valve chamber 43 to regulate. the flow of such gus.' A pcssege 47 in. the butt 10 con nects a nipple 48 to n vulve chamber 49 in which a needle valve 49', similar to the valve 45 and controlled by a head 50, is dissed. The nipple 48 may be connected by a ose or other suitble `conxviection with e the slide to its normal posi# 'lichting jet pipes independen'tl of tlierof source of combustible gas which is conveyed through aipnssuge 5l from the vulve chime ber 49 to the pipo 9.

From thc 4foregoing desci'iition, it will be :Hipaa-cnt that l have pei-{'cted :i lilowpipe oonstructioii ofE marked utility. L\ll of the operatingA pai-ts are readily ncccssible and may licolmciwocl l'i'oin linie to time foithe purpose ol ascertaining ilu-ii' condition without si'rpaiuting the` sleeve i'ioni the butt. Adjustment foil ucui' uniy ulso he uiude without dif-sniounting uny of the ports. lt will lie noted, moreover, that the oxidizing7 gus for the cutting' jet passes through the butt by the most direi-t route which is u distinct advantage. sturdy construction. and maximum life of the blowpipc i thus assured. li the valve in the oxygen lin(` liecouies foul"tliiougli wireless use. 'u muy be quickly removed. cleaned und li-plarmt rincli parte. as nre .sulijci'l lo ucui nini` lic readily' renewed willi tho niininiuin i-ioi'i.

Various 'liriners muy olifiolisiy be umile in the forni` ui'iaiiggcuieut and construction of the parts without dcpnitiiigfrom the spirit und scopo ol' the invention :is defined in the uci-onipuiiying vluinis.

I claini:

l. l'n a cutting blowpipe, the combination of u licudffiipes for sepnrntely conveying oxidizing;r gas for a cutting jet und oxidizing and Combustible gases for :i heating jet to Suid hond, n butt to which said pipes ure connected, a valve chamber iii seid Jutt; a. passage in said butt connecting seid "vulve clininlier and the cutting jet pipe. :i spring actuated aire in sziid chamber, a sleeve snif;r rounding su'id pipes.` :i longitudinally slidalile member outside said sleeve und having un operating connection with said i'iilYe, and passages in said liutt for delivering oXidiiaing ns to sind chamber and to one, ofthe heating jet pipes independently oit sind valve und combustible ges to another of snid heating jet pipes.

2. In n 'cutting blowpipe, the coiiibiiintion of a head, pi es for separately conveying oxidizing ges or n cutting jet und oxidizing' und combustible gusesfoi a heating jet to seid head, n butt to which said pipes ere connected,

passa e in said butt connecting said valve All of the pai-tsA :ire of' n. v-.ilve cliniiiber in said butt,'ii

Sli

Si l) chain er und the cutting jet pipe, n. spring' actuated vulve in said chamber, n sleeve sur- 4 rounding seid pipes, n longitud-inail slidiilile iiieniber outside said sleeve and liaviiig un operating.connection with said valve, n pivoted trigger ing gus to seid said valve und combustible gasto'nno ,seid

pipes.

heating jet 3. In a cutting blowpiperthe combination for actuating` said slide, and passages in seid butt for delivering (midischamber and to one of thea io one or' the heating jet of a head, pipes for separately Conveying .xidi/.ing- ,ens for a Putting` jet und :"niidiixinnK und 'onibustihle gases for a heating 4iet. to said head. u. butt to which said pipes :ire connected. :i valve (,'hamlui in said huit, u passage in said hutt vnunet-tingsmid valve eheinliei and the oultinff jet pipe. a spring actuated valve in suid elianihei. :i sleeve sui'- roundingr nifl pipe und u longitudirnlllj.' slidnhle member outside snif* sleeve :and hav.. ing an operating `connection with sind valve, passages in said butt for dolivei'ing oxidizing gas to said ehamhe? and to one of the .heating jet pipes independently oi" said vulve and combustible to anotl'ie ot' said heatingjet pipes, and needle vulves con trolling the passage oi' {.Ias lo sind heating jet pipes.

4. ln :i cutting lilon'pipe, the soudain tion ot' a henri. pipes foi' separately eonveyinf; oxidizing` gaa for a cutting liet and exi-- dizing and eouihnstihle gas for a heating jet to said lie-ad, n bult to which said pipes :ne connected. a1 valve chamber in said hutt, u passage ill seid butt connecting said vulve elunnheih and the cutting jet pipe, a. spring :u'tunted valve in smid eluu'nhei, a sleeve sui-- rounding said pipes and forming a` handle for the hlovvpipe, a longitudniall;v sliduble member outside said handle :ind havingr nn operatflng connection with .aid vulve, ineluding :L Cum surfaf'c' on said ineniheif, und passages in said huit for delivering oxidizing gus to said elianiliei' and to one oi the heating jet pipes independently of said vulve and combustible nrs to another of said heating jet l'iipes. f ,i 5. In u Cutting,r hlowpipe, the combination of a heed, pipes for separately conveying oxidizing gas for :i cuttingr jet and oxidizing and combustible gas for a heat-ing jet to said head, a butt to which said pipes :i1-e connected e valve Chamber in said hutt, a pas sage in said butt connecting sziid valve" ehambei' and the cutting jet pipe. zlspring actuated vulve in said chamber. a sleeve sin.14 rounding said pipes and forming n handle l'oi' the blowpipe, a longitudinally lslidalile member outsidiy suid handle and having in operating coniuwrion with snidw'alve. in-i nlnding an adjustable can! liloek on said member. and passug'esd in said butt toi' delivering oXidiI/ing gus to said Vhanihei' and ipes independently il said nlvi and eoinhustihle gas to mother t said limiting jet pipes.

G. [n a Cutting hlon'pipe, the eomliii tion il! a. lived. pipi-s fo;- sepziretelv Ponveying .xidizinif gus l'f` a eutt ig jet and oxidizing And eon'ihustihl. aus tuna lie-tuig jet to said lend. a lintt ti; vliieli saidl pipeeinre roneetefh :i valve .-iuunlwi in said liutt, a paslgif in sind Mitt connecting seid :ilve hamper and` the CuttingN jet pipe, :i spring ketiuited valve in said chamber, a sleeve suring and combustible g wending seid pipes and forming n handle 'l'oi the lilowpipe. a longitudinally slidable inenxhei outside said handle and having an operating' nomini-tion with said valve, ini-nding :i cani surfaeevon said member, a pivoted trigger for actuating' said slide. and passages in said hntt for deliveringf oxidizing ,ons lo said ehambei-,nnd to one of the heating jet pipes independently ofseid valve and eomhustihle gus to another of said heatingjet pipes.

T. In ,fi cutting lilowpipe, the combination of a hund, pipes for separately conveying oxidizing' gus for a Cutting jet, and oxidiz- V for a heating jet to seid head, a butt to which said pipes are eomiei'zted, a sleeve surrounding said pipes adjacent said butt and forming a handle for said' hlowpipe.y n, longitudinal depression in said handle, e lslide in said` depression and arranged externally of said handle, passages in `said huttfor conveying gases to the heating jet pipes, n passage in said butt for conveying ,ens to the cutting jet pipe, n valve vonti'olling the last mentioned passage and operating connections between said valve und Slide.

8. In a. cutting lilowpipe, the combination of a hond, pipes vfor seperately conveying oxid ising gas for a. cutting jet, and oxidizing und combustible gas for a heating jet to said heed, :i butt to which said pipes are connected. e sleeve surrounding said pipes adjacent seid butt and forming a handle for seidV hlowpipe. a longitudinal groove in said hndle. :1. slide in said groove, passages in said butt for conveying gases to the hentin .jet pipes, n passage in said butt foreonveying to the eutting jet pipe, a valve controlling;S the lest mentioned passage and opinviting eonneetions between said valve. and slide including a stem on said valve, a cam surface on said slide and an intermediate thrustmemheit between said` earn surface and stein.

9. In a cutting hlowpipe, the combination of e head, pipes for separately conveying oxidizingr gus for a cutting jet, and oxidizing and combustible ,Qns for a heating jet to said head, a hutt to which said pipes are connected. n sleeve. surrounding said pipes adjacent, said hurt and forming a handle for said hlowpipe, n longitudinal groove in said handle, a slide in said groove, passages in said butt; toi' conveying gases to the'heating jet pipes, a passage in said butt for conveying ges to the cutting jet pipe, a valve controlling the lust mentioned passage und 0perating connections between said valve and slide inelnding a stem on saidvrvelve. an adjustable com block on said slide end an intermediate thrust member between said cam hloek and stem.

1Q. In a, cutting blowpipe, the combination of a head, pipes for separatelv conveying oxidizing gas for a cutting jet, and oxidizing' and combustible gus Tm' :i mitiug jety tu said head, a butt te) which Szlir pipes are irrmnevtvd. a svvw slmriiluilng said pipes :adjacent :mid liutt und Forming' n handle For said blmvpipo, :l ongiudiim depressifm il) Sniil hunflie, a slide in said iilepl'ession, a pivoted ti'iggvr for actuating Said slide,

passages in Said butt for cmiveying gases t0 the boating jet pipes, a passage in Said butt l0 for conveying gus i0 the Uniting' pipe, a valve cmiroling thu Inst nmntiomfd pmsage :md opel-ating f'rmnertifms between Said vulve and slide.

In tfstimnny whereof I aiiix my gigli-attire. 15

GEORGE H. ZOUK, 

